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658 lines
18 KiB
C
658 lines
18 KiB
C
/*
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* $XFree86: xc/lib/Xrender/Xrender.c,v 1.14 2002/11/22 02:10:41 keithp Exp $
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*
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* Copyright © 2000 SuSE, Inc.
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*
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* Permission to use, copy, modify, distribute, and sell this software and its
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* documentation for any purpose is hereby granted without fee, provided that
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* the above copyright notice appear in all copies and that both that
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* copyright notice and this permission notice appear in supporting
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* documentation, and that the name of SuSE not be used in advertising or
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* publicity pertaining to distribution of the software without specific,
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* written prior permission. SuSE makes no representations about the
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* suitability of this software for any purpose. It is provided "as is"
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* without express or implied warranty.
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*
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* SuSE DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING ALL
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL SuSE
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* BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION
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* OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
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* CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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*
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* Author: Keith Packard, SuSE, Inc.
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*/
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#include "Xrenderint.h"
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XExtensionInfo XRenderExtensionInfo;
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char XRenderExtensionName[] = RENDER_NAME;
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static int XRenderCloseDisplay(Display *dpy, XExtCodes *codes);
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static /* const */ XExtensionHooks render_extension_hooks = {
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NULL, /* create_gc */
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NULL, /* copy_gc */
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NULL, /* flush_gc */
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NULL, /* free_gc */
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NULL, /* create_font */
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NULL, /* free_font */
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XRenderCloseDisplay, /* close_display */
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NULL, /* wire_to_event */
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NULL, /* event_to_wire */
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NULL, /* error */
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NULL, /* error_string */
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};
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XExtDisplayInfo *
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XRenderFindDisplay (Display *dpy)
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{
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XExtDisplayInfo *dpyinfo;
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dpyinfo = XextFindDisplay (&XRenderExtensionInfo, dpy);
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if (!dpyinfo)
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dpyinfo = XextAddDisplay (&XRenderExtensionInfo, dpy,
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XRenderExtensionName,
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&render_extension_hooks,
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0, 0);
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return dpyinfo;
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}
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static int
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XRenderCloseDisplay (Display *dpy, XExtCodes *codes)
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{
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XExtDisplayInfo *info = XRenderFindDisplay (dpy);
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if (info->data) XFree (info->data);
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return XextRemoveDisplay (&XRenderExtensionInfo, dpy);
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}
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/****************************************************************************
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* *
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* Render public interfaces *
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* *
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****************************************************************************/
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Bool XRenderQueryExtension (Display *dpy, int *event_basep, int *error_basep)
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{
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XExtDisplayInfo *info = XRenderFindDisplay (dpy);
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if (XextHasExtension(info)) {
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*event_basep = info->codes->first_event;
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*error_basep = info->codes->first_error;
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return True;
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} else {
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return False;
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}
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}
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Status XRenderQueryVersion (Display *dpy,
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int *major_versionp,
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int *minor_versionp)
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{
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XExtDisplayInfo *info = XRenderFindDisplay (dpy);
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XRenderInfo *xri;
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if (!XextHasExtension (info))
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return 0;
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if (!XRenderQueryFormats (dpy))
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return 0;
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xri = (XRenderInfo *) info->data;
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*major_versionp = xri->major_version;
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*minor_versionp = xri->minor_version;
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return 1;
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}
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static XRenderPictFormat *
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_XRenderFindFormat (XRenderInfo *xri, PictFormat format)
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{
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int nf;
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for (nf = 0; nf < xri->nformat; nf++)
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if (xri->format[nf].id == format)
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return &xri->format[nf];
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return 0;
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}
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static Visual *
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_XRenderFindVisual (Display *dpy, VisualID vid)
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{
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return _XVIDtoVisual (dpy, vid);
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}
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typedef struct _renderVersionState {
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unsigned long version_seq;
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Bool error;
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int major_version;
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int minor_version;
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} _XrenderVersionState;
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static Bool
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_XRenderVersionHandler (Display *dpy,
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xReply *rep,
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char *buf,
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int len,
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XPointer data)
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{
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xRenderQueryVersionReply replbuf;
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xRenderQueryVersionReply *repl;
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_XrenderVersionState *state = (_XrenderVersionState *) data;
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if (dpy->last_request_read != state->version_seq)
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return False;
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if (rep->generic.type == X_Error)
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{
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state->error = True;
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return False;
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}
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repl = (xRenderQueryVersionReply *)
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_XGetAsyncReply(dpy, (char *)&replbuf, rep, buf, len,
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(SIZEOF(xRenderQueryVersionReply) - SIZEOF(xReply)) >> 2,
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True);
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state->major_version = repl->majorVersion;
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state->minor_version = repl->minorVersion;
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return True;
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}
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Status
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XRenderQueryFormats (Display *dpy)
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{
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XExtDisplayInfo *info = XRenderFindDisplay (dpy);
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_XAsyncHandler async;
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_XrenderVersionState async_state;
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xRenderQueryVersionReq *vreq;
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xRenderQueryPictFormatsReply rep;
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xRenderQueryPictFormatsReq *req;
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XRenderInfo *xri;
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XRenderPictFormat *format;
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XRenderScreen *screen;
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XRenderDepth *depth;
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XRenderVisual *visual;
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xPictFormInfo *xFormat;
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xPictScreen *xScreen;
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xPictDepth *xDepth;
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xPictVisual *xVisual;
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CARD32 *xSubpixel;
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void *xData;
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int nf, ns, nd, nv;
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int rlength;
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int nbytes;
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RenderCheckExtension (dpy, info, 0);
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LockDisplay (dpy);
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if (info->data)
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{
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UnlockDisplay (dpy);
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return 1;
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}
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GetReq (RenderQueryVersion, vreq);
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vreq->reqType = info->codes->major_opcode;
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vreq->renderReqType = X_RenderQueryVersion;
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vreq->majorVersion = RENDER_MAJOR;
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vreq->minorVersion = RENDER_MINOR;
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async_state.version_seq = dpy->request;
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async_state.error = False;
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async.next = dpy->async_handlers;
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async.handler = _XRenderVersionHandler;
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async.data = (XPointer) &async_state;
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dpy->async_handlers = &async;
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GetReq (RenderQueryPictFormats, req);
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req->reqType = info->codes->major_opcode;
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req->renderReqType = X_RenderQueryPictFormats;
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if (!_XReply (dpy, (xReply *) &rep, 0, xFalse))
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{
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DeqAsyncHandler (dpy, &async);
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UnlockDisplay (dpy);
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SyncHandle ();
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return 0;
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}
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DeqAsyncHandler (dpy, &async);
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if (async_state.error)
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{
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UnlockDisplay(dpy);
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SyncHandle();
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return 0;
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}
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/*
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* Check for the lack of sub-pixel data
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*/
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if (async_state.major_version == 0 && async_state.minor_version < 6)
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rep.numSubpixel = 0;
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xri = (XRenderInfo *) Xmalloc (sizeof (XRenderInfo) +
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rep.numFormats * sizeof (XRenderPictFormat) +
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rep.numScreens * sizeof (XRenderScreen) +
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rep.numDepths * sizeof (XRenderDepth) +
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rep.numVisuals * sizeof (XRenderVisual));
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xri->major_version = async_state.major_version;
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xri->minor_version = async_state.minor_version;
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xri->format = (XRenderPictFormat *) (xri + 1);
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xri->nformat = rep.numFormats;
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xri->screen = (XRenderScreen *) (xri->format + rep.numFormats);
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xri->nscreen = rep.numScreens;
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xri->depth = (XRenderDepth *) (xri->screen + rep.numScreens);
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xri->ndepth = rep.numDepths;
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xri->visual = (XRenderVisual *) (xri->depth + rep.numDepths);
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xri->nvisual = rep.numVisuals;
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rlength = (rep.numFormats * sizeof (xPictFormInfo) +
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rep.numScreens * sizeof (xPictScreen) +
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rep.numDepths * sizeof (xPictDepth) +
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rep.numVisuals * sizeof (xPictVisual) +
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rep.numSubpixel * 4);
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xData = (void *) Xmalloc (rlength);
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nbytes = (int) rep.length << 2;
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if (!xri || !xData || nbytes < rlength)
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{
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if (xri) Xfree (xri);
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if (xData) Xfree (xData);
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_XEatData (dpy, nbytes);
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UnlockDisplay (dpy);
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SyncHandle ();
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return 0;
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}
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_XRead (dpy, (char *) xData, rlength);
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format = xri->format;
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xFormat = (xPictFormInfo *) xData;
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for (nf = 0; nf < rep.numFormats; nf++)
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{
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format->id = xFormat->id;
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format->type = xFormat->type;
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format->depth = xFormat->depth;
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format->direct.red = xFormat->direct.red;
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format->direct.redMask = xFormat->direct.redMask;
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format->direct.green = xFormat->direct.green;
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format->direct.greenMask = xFormat->direct.greenMask;
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format->direct.blue = xFormat->direct.blue;
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format->direct.blueMask = xFormat->direct.blueMask;
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format->direct.alpha = xFormat->direct.alpha;
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format->direct.alphaMask = xFormat->direct.alphaMask;
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format->colormap = xFormat->colormap;
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format++;
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xFormat++;
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}
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xScreen = (xPictScreen *) xFormat;
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screen = xri->screen;
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depth = xri->depth;
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visual = xri->visual;
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for (ns = 0; ns < xri->nscreen; ns++)
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{
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screen->depths = depth;
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screen->ndepths = xScreen->nDepth;
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screen->fallback = _XRenderFindFormat (xri, xScreen->fallback);
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screen->subpixel = SubPixelUnknown;
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xDepth = (xPictDepth *) (xScreen + 1);
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for (nd = 0; nd < screen->ndepths; nd++)
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{
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depth->depth = xDepth->depth;
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depth->nvisuals = xDepth->nPictVisuals;
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depth->visuals = visual;
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xVisual = (xPictVisual *) (xDepth + 1);
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for (nv = 0; nv < depth->nvisuals; nv++)
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{
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visual->visual = _XRenderFindVisual (dpy, xVisual->visual);
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visual->format = _XRenderFindFormat (xri, xVisual->format);
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visual++;
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xVisual++;
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}
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depth++;
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xDepth = (xPictDepth *) xVisual;
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}
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screen++;
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xScreen = (xPictScreen *) xDepth;
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}
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xSubpixel = (CARD32 *) xScreen;
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screen = xri->screen;
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for (ns = 0; ns < rep.numSubpixel; ns++)
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{
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screen->subpixel = *xSubpixel;
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xSubpixel++;
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screen++;
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}
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info->data = (XPointer) xri;
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/*
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* Skip any extra data
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*/
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if (nbytes > rlength)
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_XEatData (dpy, (unsigned long) (nbytes - rlength));
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UnlockDisplay (dpy);
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SyncHandle ();
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Xfree (xData);
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return 1;
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}
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int
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XRenderQuerySubpixelOrder (Display *dpy, int screen)
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{
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XExtDisplayInfo *info = XRenderFindDisplay (dpy);
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XRenderInfo *xri;
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if (!XextHasExtension (info))
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return SubPixelUnknown;
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if (!XRenderQueryFormats (dpy))
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return SubPixelUnknown;
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xri = (XRenderInfo *) info->data;
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return xri->screen[screen].subpixel;
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}
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Bool
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XRenderSetSubpixelOrder (Display *dpy, int screen, int subpixel)
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{
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XExtDisplayInfo *info = XRenderFindDisplay (dpy);
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XRenderInfo *xri;
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if (!XextHasExtension (info))
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return False;
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if (!XRenderQueryFormats (dpy))
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return False;
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xri = (XRenderInfo *) info->data;
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xri->screen[screen].subpixel = subpixel;
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return True;
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}
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XRenderPictFormat *
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XRenderFindVisualFormat (Display *dpy, _Xconst Visual *visual)
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{
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XExtDisplayInfo *info = XRenderFindDisplay (dpy);
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int nv;
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XRenderInfo *xri;
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XRenderVisual *xrv;
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RenderCheckExtension (dpy, info, 0);
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if (!XRenderQueryFormats (dpy))
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return 0;
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xri = (XRenderInfo *) info->data;
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for (nv = 0, xrv = xri->visual; nv < xri->nvisual; nv++, xrv++)
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if (xrv->visual == visual)
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return xrv->format;
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return 0;
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}
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XRenderPictFormat *
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XRenderFindFormat (Display *dpy,
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unsigned long mask,
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_Xconst XRenderPictFormat *template,
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int count)
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{
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XExtDisplayInfo *info = XRenderFindDisplay (dpy);
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int nf;
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XRenderInfo *xri;
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RenderCheckExtension (dpy, info, 0);
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if (!XRenderQueryFormats (dpy))
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return 0;
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xri = (XRenderInfo *) info->data;
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for (nf = 0; nf < xri->nformat; nf++)
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{
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if (mask & PictFormatID)
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if (template->id != xri->format[nf].id)
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continue;
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if (mask & PictFormatType)
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if (template->type != xri->format[nf].type)
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continue;
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if (mask & PictFormatDepth)
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if (template->depth != xri->format[nf].depth)
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continue;
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if (mask & PictFormatRed)
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if (template->direct.red != xri->format[nf].direct.red)
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continue;
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if (mask & PictFormatRedMask)
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if (template->direct.redMask != xri->format[nf].direct.redMask)
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continue;
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if (mask & PictFormatGreen)
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if (template->direct.green != xri->format[nf].direct.green)
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continue;
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if (mask & PictFormatGreenMask)
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if (template->direct.greenMask != xri->format[nf].direct.greenMask)
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continue;
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if (mask & PictFormatBlue)
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if (template->direct.blue != xri->format[nf].direct.blue)
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continue;
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if (mask & PictFormatBlueMask)
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if (template->direct.blueMask != xri->format[nf].direct.blueMask)
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continue;
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if (mask & PictFormatAlpha)
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if (template->direct.alpha != xri->format[nf].direct.alpha)
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continue;
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if (mask & PictFormatAlphaMask)
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if (template->direct.alphaMask != xri->format[nf].direct.alphaMask)
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continue;
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if (mask & PictFormatColormap)
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if (template->colormap != xri->format[nf].colormap)
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continue;
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if (count-- == 0)
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return &xri->format[nf];
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}
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return 0;
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}
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XRenderPictFormat *
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XRenderFindStandardFormat (Display *dpy,
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int format)
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{
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static struct {
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XRenderPictFormat templ;
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unsigned long mask;
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} standardFormats[PictStandardNUM] = {
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/* PictStandardARGB32 */
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{
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{
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0, /* id */
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PictTypeDirect, /* type */
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32, /* depth */
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{ /* direct */
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16, /* direct.red */
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0xff, /* direct.redMask */
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8, /* direct.green */
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0xff, /* direct.greenMask */
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0, /* direct.blue */
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0xff, /* direct.blueMask */
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24, /* direct.alpha */
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0xff, /* direct.alphaMask */
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},
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0, /* colormap */
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},
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PictFormatType |
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PictFormatDepth |
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PictFormatRed |
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PictFormatRedMask |
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PictFormatGreen |
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PictFormatGreenMask |
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PictFormatBlue |
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PictFormatBlueMask |
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PictFormatAlpha |
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PictFormatAlphaMask,
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},
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/* PictStandardRGB24 */
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{
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{
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0, /* id */
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PictTypeDirect, /* type */
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24, /* depth */
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{ /* direct */
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16, /* direct.red */
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0xff, /* direct.redMask */
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8, /* direct.green */
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0xff, /* direct.greenMask */
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0, /* direct.blue */
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0xff, /* direct.blueMask */
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0, /* direct.alpha */
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0x00, /* direct.alphaMask */
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},
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0, /* colormap */
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},
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PictFormatType |
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PictFormatDepth |
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PictFormatRed |
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PictFormatRedMask |
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PictFormatGreen |
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PictFormatGreenMask |
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PictFormatBlue |
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PictFormatBlueMask |
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PictFormatAlphaMask,
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},
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/* PictStandardA8 */
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{
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{
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0, /* id */
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PictTypeDirect, /* type */
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8, /* depth */
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{ /* direct */
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0, /* direct.red */
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0x00, /* direct.redMask */
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0, /* direct.green */
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0x00, /* direct.greenMask */
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0, /* direct.blue */
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0x00, /* direct.blueMask */
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0, /* direct.alpha */
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0xff, /* direct.alphaMask */
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},
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0, /* colormap */
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},
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PictFormatType |
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PictFormatDepth |
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PictFormatRedMask |
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PictFormatGreenMask |
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PictFormatBlueMask |
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PictFormatAlpha |
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PictFormatAlphaMask,
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},
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/* PictStandardA4 */
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{
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{
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0, /* id */
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PictTypeDirect, /* type */
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4, /* depth */
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{ /* direct */
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0, /* direct.red */
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0x00, /* direct.redMask */
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0, /* direct.green */
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0x00, /* direct.greenMask */
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0, /* direct.blue */
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0x00, /* direct.blueMask */
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0, /* direct.alpha */
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0x0f, /* direct.alphaMask */
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},
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0, /* colormap */
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},
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PictFormatType |
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PictFormatDepth |
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PictFormatRedMask |
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PictFormatGreenMask |
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PictFormatBlueMask |
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PictFormatAlpha |
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PictFormatAlphaMask,
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},
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/* PictStandardA1 */
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{
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{
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0, /* id */
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PictTypeDirect, /* type */
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1, /* depth */
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{ /* direct */
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0, /* direct.red */
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0x00, /* direct.redMask */
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0, /* direct.green */
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0x00, /* direct.greenMask */
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0, /* direct.blue */
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0x00, /* direct.blueMask */
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0, /* direct.alpha */
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0x01, /* direct.alphaMask */
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},
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0, /* colormap */
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},
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PictFormatType |
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PictFormatDepth |
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PictFormatRedMask |
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PictFormatGreenMask |
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PictFormatBlueMask |
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PictFormatAlpha |
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PictFormatAlphaMask,
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},
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};
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if (0 <= format && format < PictStandardNUM)
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return XRenderFindFormat (dpy,
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standardFormats[format].mask,
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&standardFormats[format].templ,
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0);
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return 0;
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}
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XIndexValue *
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XRenderQueryPictIndexValues(Display *dpy,
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_Xconst XRenderPictFormat *format,
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int *num)
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{
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XExtDisplayInfo *info = XRenderFindDisplay (dpy);
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xRenderQueryPictIndexValuesReq *req;
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xRenderQueryPictIndexValuesReply rep;
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XIndexValue *values;
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int nbytes, nread, rlength, i;
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RenderCheckExtension (dpy, info, 0);
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LockDisplay (dpy);
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GetReq (RenderQueryPictIndexValues, req);
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req->reqType = info->codes->major_opcode;
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req->renderReqType = X_RenderQueryPictIndexValues;
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req->format = format->id;
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if (!_XReply (dpy, (xReply *) &rep, 0, xFalse))
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{
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UnlockDisplay (dpy);
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SyncHandle ();
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return 0;
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}
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/* request data length */
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nbytes = (long)rep.length << 2;
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/* bytes of actual data in the request */
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nread = rep.numIndexValues * SIZEOF (xIndexValue);
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/* size of array returned to application */
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rlength = rep.numIndexValues * sizeof (XIndexValue);
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/* allocate returned data */
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values = (XIndexValue *)Xmalloc (rlength);
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if (!values)
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{
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_XEatData (dpy, nbytes);
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UnlockDisplay (dpy);
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SyncHandle ();
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return 0;
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}
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/* read the values one at a time and convert */
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*num = rep.numIndexValues;
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for(i = 0; i < rep.numIndexValues; i++)
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{
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xIndexValue value;
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_XRead (dpy, (char *) &value, SIZEOF (xIndexValue));
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values[i].pixel = value.pixel;
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values[i].red = value.red;
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values[i].green = value.green;
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values[i].blue = value.blue;
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values[i].alpha = value.alpha;
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}
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/* skip any padding */
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if(nbytes > nread)
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{
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_XEatData (dpy, (unsigned long) (nbytes - nread));
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}
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UnlockDisplay (dpy);
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SyncHandle ();
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return values;
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}
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